Chusetts



@atten gratas gattini @fitta ANDREW n. soHoLriLu AND DE WITT csTnRRicf or WORCESTER, MASSA- euUsnTTs.

Letters Patent No. 79,150, dated June 23, 1868.

IMPROVEMENT 1N PUMPS,

TO ALL WHOM IT MAYCOITCERN:`

Be it known that we, ANDREW H SlcHoLFInLD and DE WITTC'.v Swarm-ot' Worcester, in thecountyot Worcester, and State of Massachusetts, have invented a new and useful Machirie for the Raising of Water from Wells, Cisterna, tc.; and we do hereby declare that the followiug'is a full, clear, and exact description of the construction andv operation of the same, reference being had to the annexed drawings, making a part of this speccation, 'in which-- Figure .1 is a perspective view.

Figure 2 is an interior view of onehalf of fig. 1, and

Figure 3 a view-of the conductor as detached,

A A vrepresent a.` cylinder.

-BB represent the ,head of theoylinder.

C C represent openings or linlets for the water.

D D represent valves connected with inlets.

EE represent ringholding the head in place.

F F representiange o f conducting-pipe.

'G' G represent lower section of pipe, movable.

BI` H represent upper section of pipe,stati onary.

I I represent stuing-box'.

lJ J represent spur-wheel, crank, and ehaiu for raising or lowering the lower section of conductor.

We ,construct a cylinder, A A, of any required dimensions, nf' any suitable material, as iron, copper, clay, wood, and with or withoutbottom. This cylinder is placed in ythe well, cis'tern, or reservoir, as the cese may be. It rests upon the bottom of the well, and actual experiment demonstrates that it will work with ease and certainty, eventllough the'water should cover it several feet, To the interior surface of the cylinder, 'at a point midway its length, is fastened the mouth of an'inverted flexible cup 4or diaphragm, B B. llt is made of any suitable water-tight or workable material, such as vulcanized rubber, reference being had to its health'fulness, purity, and durability. Thiscup or head is held in its place bya close-fitting ring,-E E, so that it is impossible for any water to escape between it and therface oi' cylinder. At'itsapex the 4head is pierced lto receive a' conducting-pipe, S. This'is secured vto the head by flanges F F,1vl1ich 'also prevent any leakage around the entrance of the pipe. This lower pipe is ofiron, and at a suitable p'oint enters, through a stuftng-box, I I, the upper 'section H H, whieh'is stationary, while the lower pipe plays up and down,being regulated by the spur. wheel and its connections. Near the bottom of the cylinder are several openings or inlets C C, through which thercircumtluous waters enter the cylinder. These openings are supplied with valvesD.

` In ordinary cases the cylinder would hold about sinty (60) gallons, (though they can` be made of any required` capacity.) .Two-thirds orthereabouts of the contents would be forced up through the pipe, and discharged by the pressure ot' the movable section of pipe, its own weight beintg` suiiicient ordinarily, but it' vfound insuiicient in any given case, may be made all-sudicient by couplingon to the movable pipe a suitable weight;

The spur-wheel and its connections J J, supported by the upper part of the tube, which of course is xcd in position by lateral connections, are designed to let on or. take oii', as desired, the pressure upon the head. Touching the pawlof the ratchet-wheel, solas to give play to the 'lower section of the pipe, its weight crowds the water so as at once to shut 'tght'the valves D, and the water imprisoned rushes up andescapes through the` pipe with great force, until the cylinder is mainly emptied.A Then, by a turn of the ratchctfn-heehthe head, (which in drawinga large quantityuof water, would be completely inverted,) would be broughtback to its natural place,

while the cir'cumfluous waters press open the valves, andrrushing in, fill the'cylinder in a moment, so that an almost unbroken stream of AWater may be had until the reservoirfor 4cisternis exhausted.

What we claim as our invention, and desire to secure by-Letters Patent, is

The diaphragm-pump, having `a'liollow rod`with telescopic connections, and operating substantially'as described. A.- H. SCHOLFIELD,

DE WITT C. STERRY.

`Witnesses:

J. E. DRUM, WrA. DRURY. 

